Efficient grouting construction method for prefabricated shear wall

Abstract

The invention discloses an efficient grouting construction method for a prefabricated shear wall, which comprises the steps of prefabricating the shear wall, mounting a funnel, grouting, maintaining pressure, observing and the like, and is characterized in that a plurality of grouting sleeves and grouting observation pipes are pre-buried in the shear wall in the prefabricating process of the shear wall to obtain the prefabricated shear wall; a grouting channel is formed in the bottom of the prefabricated shear wall body. The bottom of the grouting sleeve and the bottom of the grouting observation pipe communicate with the grouting channel. The top end of the grouting observation pipe is higher than that of the grouting sleeve; the grouting observation pipe comprises a vertical part and a horizontal part which are integrally connected, the vertical part is pre-buried in the prefabricated shear wall body, and the horizontal part extends out of the prefabricated shear wall body to be communicated with the outside. By using the grouting observation pipe and the funnel, whether grouting is full or not can be found in time, if the grout leakage phenomenon exists, grout can be supplemented in time within effective time, the grouting fullness is guaranteed, the grouting time can be saved, and the grouting efficiency is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a high-efficiency grouting construction method for a prefabricated shear wall. Background technique [0002] Prefabricated buildings, as a standardized green building form developed in recent years with efficient and fast construction, energy saving and environmental protection, and guaranteed quality, have attracted the attention of the construction industry and have developed rapidly. The seismic resistance and integrity of prefabricated buildings are important factors restricting its development. In order to improve the seismic resistance and integrity of prefabricated buildings, it is necessary to ensure reliable connections between prefabricated building components. The commonly used prefabricated building connection method is mainly steel sleeve grouting connection. This connection method effectively ensures the integrity of the prefabricated build...

AI Technical Summary

Problems solved by technology

The connection strength of steel bar joints mainly depends on the fullness of the grouting material in the sleeve, but during the grouting process, due to insufficient pressure holding time of the grouting machine, untimely plugging, and backflow of the grout in the sleeve after grouting It may lead to insufficient grouting, which will affect the overall mechanical performance and seismic performance of prefabricated shear walls

However, at present, there is a lack of effective detection methods, and there is no sufficient basis for acceptance. It can only be judged whether the grout is full according to the smoothness of the grouting hole of the grouting sleeve, thus burying hidden dangers for the safety of the construction structure.

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